G93 – Other disorders of brain
ICD-10-CM 2027 diagnosis code · Other disorders of the nervous system
ICD-10-CM code
G93
- Code
G93(claims format:G93)- Description
- Other disorders of brain
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 6. Diseases of the nervous system (G00-G99)
- Block
- G89-G99 Other disorders of the nervous system
Billable codes under G93
G93 is a header code and cannot be used on claims. Choose the most specific code:
- G93.0 – Cerebral cystsBillable
- G93.1 – Anoxic brain damage, not elsewhere classifiedBillable
- G93.2 – Benign intracranial hypertensionBillable
- G93.3 – Postviral and related fatigue syndromesHeader (more codes below)
- G93.4 – Other and unspecified encephalopathyHeader (more codes below)
- G93.5 – Compression of brainBillable
- G93.6 – Cerebral edemaBillable
- G93.7 – Reye's syndromeBillable
- G93.8 – Other specified disorders of brainHeader (more codes below)
- G93.9 – Disorder of brain, unspecifiedBillable
Frequently asked questions
What is ICD-10 code G93?
G93 is the ICD-10-CM code for other disorders of brain, in the block G89-G99 (Other disorders of the nervous system).
Is G93 a billable code?
No. G93 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.